NVIDIA GeForce Experience (Recording problems)

Question

As some of you know I own a youtube channel and already got about 8 videos.

But recently when I record something with Geforce Experience, it keeps recording the sound double. So when I stop the recording and double check it - I can hear the sounds being double, it looks like that the sound is being recorded from my headset and maybe from my micrphone im not sure.

Also like when I shoot with a weapon; the first sound is hard and the second one is like a soft ''puff'' sound. I hope some of you guys could gimme any tips or advice how to fix this shit!